On the influence of cold deformation on liquid metal embrittlement of a steel in a liquid zinc bath

Abstract

The influence of cold deformation on liquid metal embrittlement of a steel in a liquid zinc bath was studied. A typical construction steel was cold deformed with different degrees. The microstructure of the different material conditions were investigated as well as their mechanical properties at 450 °C in hot air. Tensile tests with different strain rates were made in a 450 °C hot zinc bath. For each specimen the reduction in area was determined and the fracture surfaces were studied. It can be shown that the strain rate has a large effect on liquid metal embrittlement. An increasing degree of deformation leads to a decrease on liquid metal embrittlement which is caused by the change of microstructure through deformation.

Environmental degradation of structural materials in liquid lead- and lead-bismuth eutectic-cooled reactors

“…Under these circumstances, the corrosion-inhibiting Zn coating can melt and trigger LME of the steel substrate. Extensive investigations have been performed to examine the LME characteristics of such couples [287][288][289][399][400][401][402][403][404][405][406][407][408][409][410][411][412][413][414][415][416]. The main findings showed that the dominant fracture mode was Zn penetration along austenite GBs and/or twin boundaries, forming liquid metal films and causing both the formation of Zn-rich intermetallic compounds and phase transformations [399,408,411,413,415,416].…”

Stability investigation of electrodeposited zirconium diboride ceramic coatings in molten zinc

“…Hot‐dip galvanizing is one of the most effective and economic methods to protect materials from corrosion and widely used as surface treatment for steels in various areas . After processing in molten zinc, steel components exhibit excellent anti‐corrosion properties in corrosive environments like atmosphere, sea water, and soil.…”